{
  "annotation_id": "eed80edd-bd9f-48b6-96ee-340b68f46f7c",
  "date_created": "2026-03-02T18:01:58.862000Z",
  "date_modified": "2026-03-02T18:01:58.862000Z",
  "file_hash": "7a1915c710201fbd90fc020b6c2940010f21c6b0fdf8b8a0e6742297d06234a1",
  "private": false,
  "record": {
    "abstract": "We report an experimental demonstration of Schumacher\u0027s quantum noiseless\ncoding theorem. Our experiment employs a sequence of single photons each of\nwhich represents three qubits. We initially prepare each photon in one of a set\nof 8 non-orthogonal codeword states corresponding to the value of a block of\nthree binary letters. We use quantum coding to compress this quantum data into\na two-qubit quantum channel and then uncompress the two-qubit channel to\nrestore the original data with a fidelity approaching the theoretical limit.",
    "arxiv_id": "quant-ph/0304036",
    "authors": [
      "Y. Mitsumori",
      "J. A. Vaccaro",
      "S. M. Barnett",
      "E. Andersson",
      "A. Hasegawa",
      "M. Takeoka",
      "M. Sasaki"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.91.217902",
    "journal_ref": "Phys. Rev. Lett. 91, 217902 (2003).",
    "title": "Experimental demonstration of quantum source coding",
    "url": "https://arxiv.org/abs/quant-ph/0304036"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7b788526-813c-4514-9b80-b0ecb5f8a0e0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}